Torpedo



July 14, "1925.

A. H. CHASE ET AL TORPEDO Filed Feb: 18. 1922 7 Sheets-Sheet 1 vA.H.Clmse HL..B6esch Emma; I atto'cwu4 July 14; 1925.

noenl'ou (lease HLMBoe-scb July l4, 1925. I v 1,546,282

A.- H. CHASE ET AL TORPEDO Filed Feb. 18, 1922 v Sheets-Sheet 4 3mmJLHCZ: use

Boesclz EEHollroolt' A. H. CHASE ET AL TORPEDO Filed Feb. 18, 1922 '7Sheets-Sheet 5 July 14, 1925. I

is Y AHChasa I HL.Boesclz July 14, 1925 1.546.232

A.- H. CHASE ET AL T'ORPEDO Filed Feb, 18. 1922 7 Sheets-Sheet 6Write-away July 1 4. 1925. 1,546,282

A. H. CHASE ET AL TOHPEDO Filed Feb, 18. 1922 7 Sheets-Sheet v sure, thetotal area of usually in the following manner:

Having selected a suitable working presthe turbine nozzles 1s fixed tosuit the quantity of motive fluid sup plied per unit of time. 1

The fuel and water are sprayed into the combustionchamber through partsof well known construction, the orifices of which are adjusted to suitthe quantities required per unit of time. i

The fio-w of fueland' water ismaintained by establishing adifierence-between the pressures. in. the combustion chamber and in thefuel and water co.;1partments.r The difference in pressure is obtainedprincipally by the use of arestriction of suitable size, in terposed inthe air line between the combustion chamber and the point in the. airline from which connection is made to the fuel and water containers.

As satisfactory turbineefficiency can be obtained only at high rotorspeed, it is uesessa-ry tointerpose a suitable gear reduction betweenthe turbi-neand the propeller shafts.

The above adjustments constitute the power and speed setting'of thetorpedo, and

in the case of torpedoes of the usual types, when once established,remainfixed with only slight variations for any design, change ofadjustment being obtainable only'by partial disassemb'ly of the torpedoand substitution of parts. The torpedo, therefore, after beingcompletely assembled, is capable of running, within narrow limits, atbut a single speed. J

By means of the mechanism; herein illustrated and described-all of theabove adjustments may be simultaneously varied with-- out disassemblingthe torpedo, the variations being so coordinated that proper regulationof the air, fuel and water supply is ob tained for each of a definitenumber of power or speed settings. In the mechanismv as Illustratedprovision 1s made for three settings although the mechanism withoutessen tialchange of principles may be adapted to a greater or lessernumber of settings.

By the rotation of a; main setting shaft which will be hereinafterdescribed. in detail, the correct'variation, to suit the position ofunit of time in any the setting shaft as recorded on a suitableindicator, is efiected simultaneously in each of the following factorsaffecting the power and speed of the torpedo:

(a) Total area of turbine nozzle ports. V (Z?) Area of restriction ororifice controlling supply of fuel.

(0) Area of restriction or orifice controlling supply of water. 7

j (d) Area of restriction regulating differential pressure.

(6) Gear reduction. Referring now to the drawings in detail,

Figure 1, a main setting shaft 10 termi nates in a bracket or bearing 11attached to the shell of the torpedo through an opening in which thehead of the shaft is accessible. By rotating this shaft as by means of awrench or other suitable device adapted to engage a socket 12 formed ina head of the shaft, the desired adjustment may be made. A pointer ispreferably carried by the head of the shaft to coact with suitablelegends stamped on the exposed part of the mechanis m but indicating theposition of the setting of the shaft corresponding to the differentspeedsettings. A spring actuated detent or plunger 13 is adapted to engagenotches in the periphery of the shaft head and thus insures the accuratesetting and maintaining of the shaft in its adjusted position- Adjacentthis shaft is the forward bulkhead l l of the after-body and it isprovided with a housing 15 containing a number of turbine nozzles 16equal to or greater than the number of speed settings, the total nozzleport area being adequate to the maximum power developed at the highestspeed setting. When the mechanism is set for lower speed, certain ofthese nozzles are blanked off in any desired manner but preferably bymeans of a nozzle valve 17 shown in detail in Figure 8 and raised andlowered by means of the'rack 18 and the mechanism shown in Figure 7 Thecombined area of the nozzles which are open: at each speed setting isprogear 22 and thebevel gears 28' shown in Fig ure 1. The rack 18 isbacked up by a roller 24: mounted on the supporting bulkhead in order toreduce the bending stresses in the valve stem and insure smoothoperation.

The quantities of fuel and water supplied to the combustion flask 24,Figure 5, to suit the power developed at the different speed settingsare regulated by means of the rotary regulator valve 26 shown in Figure4. The position of this valve is controlled by movement of the settingshaft 10 to which the reguleter, Valve geefeeLbymeefis of gears '27a'njd;28:;iand bevefgears =23.

Water antlithe third sietshowhfiri fiigill e 11 fr;a;i1-; Thenul'nheii:ofpbtts in eacheet 1; c 'orres'pondis 'tOfthe nitinb er 6fspeed settings fpl evided, by" the Inectm'nism. The air ports,

A pci sedf in the; air p jvztlv'e toe the Combustion? flak, the air pa eingfin the manner indicated; by the emws, that-j-is, from the'chembefifiOthreugh the large port 31 end -l outf through the port-3'2.A 'isecon'd 'ain joutlet'j 38 I from the reduced pressure chamber:eom'municatesgiwith T the 'tlelgz't ldQty/fitter reservoirs. f-fThe'size's 'o'fthe ,a dj'u stedtefls uit the quantities efi eirfd'eliv ered:t0 the combustion: fiaisk atthe. different e peed: settings sb thatlthedrop' in,p 1 eS's1ire L fJIthe "airjin: p asing'through ithese; festijiejtions I and the i air? pipe to the .c oinhustien' 2Lsuitabled-iifereric'e, in pressure between the I ieombtletio'n flask andthe fuel 'and'iwvater' r'eeerv'0i'rs3 to ,rhtintein; the: Continuousfend nifgrm fiow o'fthefliqiiidswthroughi the regulator valvetiO'n-Lfia'sln 1; giThe izes- 0f the i f H restrictions inithearegfilator Valve; are so adjusted to} the differential Pressure iiestab- V lish'ed: fer each speedifsettifig that theproper.- qiiantitiesof' the- {liquids vr'e"qu1ii (1:-by' the pwer deYepe d,;.2Jtfieachspeed? setting I willbe; delivered into the combustion, flask; V j:;,"";l"hef rbt'ary fi al ve ine'mbers iii-fund 3 5, 7 shown; in' Figures.9Pend f10 'are.:mbunted upon "same stem .;26 -e11'c1 control the sup} vfigure'gbymeans 'ofthetlifbiries 38 1 e0 resp tiv y" is ,rflcgmmunicatedto I v e p1 pellet; shaft through a. ge r reduc tibntrain Consisting ofmain ldri'vingjyping; U ens 5L1 and 42011 the l'ollter."21411101"innehtur bjne ;,-sp i n d1esf respectively, lthewside geare 48 a d 4 orhe'QppQ' .ite{. e g' ,6, s Figurefl, meshing withei the dr iv Lugi;gears Y 4. a 1 2 ;1; he:Lmeinfl iY glgea Q an d" bevel pin-ionsi52and rigidly-secured theiqther are; edaptedlto mesh eenti uously' Threesets of: ports are pmjridedfi0nthe 5 "Valve s'tel'l'l 26 as shown inFigures: 9-, 10' and for; instance, shown 'lnfFigi'ue 1 I are inte Valgle'adin'g from the redqced JP IGSSHIfG f ChMQbGI'E of the .redueing lpei'ts'; hojwnlin the l oteiiy valve ,meni'berere speed sidergeare i vI" flask .Willf be sufficient in all? eases; t9 ins'ureg erdel to'gui'dethe geai s -intp gmeshwl I I Alth ughlintm vma h l fwd water tothe c mbustion h aslot 63- ihtheeamljplatee6ibeing'soyiermed- Itothedrivjing geal sfiO and '51 ei1dftheheve1 el y e i b lm 's e-ASS lQ thPa ts is, the entire mechanism set fer aw Sher of longer' range isdesired a rench 'Pi's a with" the maihqdrivingpiiiions' 41 "endjZv s o fe that the 'pe'r 'ipheg'al speed s of theseqgear s are equal; '1; 1mm{the mec1mni m isadj 11st (1 to '7 V thedfigh V speedQsettihg. the'reckerskagncl; side gears e cu'p'y the ipositiomshown finifu'll linesfinI'Figure t, ;t he main-drivin gears 15.0. fend 2' '51 bein-gfdriyenby the high speed side .geit'rs 43- an'd'e l44 Fig1'1i'ef'8 mat-{aperipheral?speiel equal to Q1 peripheral speed of the drving fpiiliIlAlaIidZ 1 Tf EaCh if the lowls peed sidegears fifiias= we11. .'es 47aLndAS consist bf two" o v ti'ons'. securely fa stened together. Thfsee; 'tidns ,of large dizimetelgithat his," 46 j, n'dt'l;

' mesh eontinuouslyithxthe, drivixig 'piilions i 5&1? 211C142 and; thesectihsfdfiSinallepdiarhQ )teg'that is,: andlLSflneshWith thelfixiinggeafs 50 and 51 when the e mhfiilifith-Z i3 adjusted to the slew speedfsetting? The, main Y driving 3' gears andlfi lifztfe thus driven at 1 ajperipheleal speed Whieh flis lotver the 1 peripheral speed --'0f' thevdrivingapihiohsfl a'nd"&2 in the ratio ofTthe" pitch diameters of fthe-"smallflandllarge sections 105. the low} Th r tatib'mofthe ro'ckers58e;and 601 m I ryingjtherewith the 'gea'rs the hi'ghltothe-1ow;speed;poitionand v fl 1 is rag c omplished bythe. ingyement: 0 f fan} operatingroqlmfi' l Figure; ='E;l inked- 't0"-the -membeK-IS O Vat gon end;.theopposite-f end} carr ing; a; groller 62 rwhichj engages a 1 gamtheham,slbtbeingsef rihedthet thefreta v I ti01'1 ,,0ff thesetting,shaft '10; contrgls'fth' p 51: .tiioji'of thesidergeaips-and recker'""The teethjbf[the' mgtin drivin gee I lztndq51gand f-the sidegearsficojgtetijng there;- ;With:'- are; fitted fwith '-po'inted;extehsieh si that the high 'peed pesitjen bi theggeeiis" is 'retainedfor both the high-end inter-inedlate L settings hutjfetitedliced'sleed'on th inter-f {I mediate setting, the loss of efficieneyresultihg'. rem the lower roto'r speect 'ahthc nter mediate;setting beincgn sider ecl' pi IeIf b1 to h nc ed, omiflb i y f fth zq-deesl whiCh;would "result lfi em three gearl Ted} The, bpid in; the position shown.in the drawing speed sh'et; EIf aniintermediate s eedgshet pliedltothesocketlZflihi the setting; ehaftfg r 10 and the same is gi ventu fn'thrqugh sub;

stantially 90. This setting or turning of the setting shaft does notaffect the. changed speed gearing due to the peculiar curvature of thecam slot 68 shown in Figure 4 but it will through the bevel gearing 23and gearing shown in Figure 7 raise the nozzle valve therein from fullopen position to a midway position or, in other words, it will blank offthree of the five nozzle ports, Fig. 8. Not only are a certain number ofthe turbine nozzle ports closed. but the rates of flow of fuel, waterand air are also varied by reason of the rotation ofthe valve shown inFigures 9,10 and 11, therefore, inasmuch as less motive fluid isdelivered tothe turbines the torpedo will, with unchanged gear ratioconsequently travel at a lesser speed but over a longer distance.

If an exceedingly long range low speed shot is desired the setting shaft10 is rotated approximately 200 whichwill, through the gearingpreviously described and shown in Figure 7 further raise the nozzlevalve'l'Z until all but one of the nozzles 16 are blanked off or closed.This same gearing will also rotate the valve mechanism shown in Figures9, 10 and 11 to vary the amount of fuel, water and air respectivelydelivered to the combustion flask.

Furthermore, the cam slot 63 will coact with the roller 62 and actuatethe rocker mechanism carrying the side gears whereby the high speedgears 43 and 44'shown in Figure 3 are carried out ofjmesh with the maindriving gears 50'and 51 and the reducing gears 45 and 48 are broughtinto mesh with these driving gears-5O and 51, being driven by theintermediate gears 46 and 47. meshing with the 'main driving pinions 41and 42.

In this manner the quantity of motive fluid delivered to the turbines isfurther reduced and a different spcedratio placedbe-. tween the turbinesand the propeller shafts thereby driving the torpedo at a much slowerspeed but over a much longer range, while retaining maximum turbinespeed and consequently maximum turbine efficiency.

It will thus be seen that the present in vention provides a reliableand, efficient mechanism for easily and quickly setting the motive meansof a torpedo to obtain any one of three desired speeds and ranges ac.

cording to the particular use to whichthat torpedo 1s to be put, infact, the invention is believed to accomplish, among others, all of theobjects and advantages herein set forth in a simple and practicalmanner,

Without further analysis, the foregoing will so fully reveal the gist ofthis inventionthat others canby applying current knowledge readily adaptit for various applications with-out omitting certain features that,from the standpoint of the prior art, fairly constitute essentialcharacteristics of the generic orspecific aspects of this inven tion,and, therefore, such adaptations should cribed, in combination, fluidoperated motive means, means for regulating the flow offuel thereto,driven shaft connected with the motive means, a change speedgearinterposed bet veen the driven shaft and the motive means and adevice for regulating the flow of'fiuid to change the speed of thedriven shaft. 4 i

2. In an apparatus of the character described, in combination, fluidoperated motive means, means for regulating the flow of fuelthereto, adriven shaft connected with the motive means, a change speed gearinterposed between the driven shaft and the motivemeans, a device forregulating the flow of fiuid to change the speed of the driven shaft andmeans operated simultaneously therewith for actuating the change speedgears;

3. In an apparatus of the character described, in combination, fluidoperated motive means, means for regulating the flow of fuel thereto, adriven shaft connectedwith the motive means, a change speed gearinterposed betwecnthe driven shaft and the motive means, a device forregulating the flow of fluid to change the speed of the driven shaft andmeans operated simultaneously therewith fol-actuating the change speedgears and reducing the flow of fluid to said motive means.

4. In an apparatus of. the character described, in combination, aturbine having a plurality of nozzles for supplying fluid thereto, meansfor closing one or more of said nozzles as desired to restrict the flowof fluid, a driven shaft actuated by said turbine anda change speed gearinterposed between the turbine and the driven shaft adapted to beactuated simultaneously with means for closing one or more of saidnozzles and further retard the speed of the driven shaft.

5. A pair of turbines, a plurality of nozzle ports coact-ing with saidturbines, a valve for closing one or more of said nozzle ports for theturbines as desired, a pair of driven shafts operated by said turbines,gearing for rotating said shafts in opposite directions and change speedgears interposed between said first mentioned shafts and the turbineswhereby the rate of speed of the driven shafts may be regulated to oneof two speeds."

, 6. A pair of turbines, a plurality of nozzle ports coacti'ng with saidturbines, a valve for closing one or more of said nozzle ports for theturbines as desired, a pair of driven ffir st'; mentio ed 7 V 7 "wherebyithe rateflofi peed -uoffthd driveni bne nftwospgedst mu'Itane ujSIy'With- 7 g aring foif modifying thq; flQW Q f fluid thf0u'g11 said "nbzjzlfpo'rtsftoj differentlspged develop d- '11- 'i 7. 11511; torpedo, incombina-tiong 'm ul'tie ornprising pair of "super fgear's "aS- shafts,change 'spejed gearin tween said plnionsflnd' sgud rotating said shaftsin oppositidi reiitions; change I speed shafts: and the -;turbin sshafts m 'bfis dg la i d and; vmgansjfigpera tive V the change speedtheff turbines h ei by;

more of me p'o r't sthereof hafbs, change} speed gearing iritgrpQsd band "said f shafts-q; a

therewith, nozzle 'pijrtsj :for u pplying' motive 21, pair Qf f driven;0 in'g'grposed b shafts, means i .v

actnzitedion actuation Qfr'sid gears "inte posed between said :a daptdzto 'b'actua'ted portion I f, the mo'vementk of saidjjzalvef means wherebya furtherreduction' spped one position-1103110131131; j 'l2LJIn atorpeddg in c bmbinzptidnnagset; T wing shaft adapted to}foQcgz'upy zvplurdlipybf Pinionsiassfcuitdd therewith, ndzzle p'orfgs' 911; supplyingboivezmeans 2130 said ,t'urbifies a} pairpf dri-Yen ffbhep idrivien '5 Iv v v "I'ahtypf turbines'hav nganner and d ivlng-bshafts, nner{Litldoi'ite dnvpn ter pp sived btween; "said nozfz leflpcii tsvfgcondncting fl'u c n i said. turbines, a; setting shaft; vg lye actuatedby saidisetting shaft; for "o'fi' o'ne '01" more "bf js a'i'dfports m y:be obtained and ichim'ge speedrgea positions 4nd meansi'for' "holdingSaid shaft in'f'set po s t dn, aft ibine', nozzle ports f0 gliei' "0O 2;lower "ing Ghangespeed mechanism adapted iii-be Qacftua'ted as saidvaliriipechanisniji L -:its 1fina1 closing m ovemen V In a tOrpedO,1injconbinatiiq shdjftw gearing' asfsociated 'wi th said I diiiv V andd'riyenshafts,ichange. speed gea n-gg l 7 driving and; driyn f V int ed :W ithtut;

If binsfeach having 'aipluiality'bf pb rfisjand f I means atua ted 011'actuation Of said cha l speed gear n fo' str ct ng ghpa thbf flow offthqjfliiid"means said f 1 Z10, 1 In a torpedd, i'n combination; tnrbinshaving "driving gears iass'ociz ted therew'ithfl;

- ARTHURHUTOHINSON GHA E in jH RYTLUTHERPBOESGH.

simultaneously {with setting 0r,ho1ding. aid shaft, "in-

